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(No Model.) 2 Sheets Sheet 2 F. H. RICHARDS.

MEGHANIGAL MOVEMENT.

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Patented Dec. 7, 1886.

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UNITED STATES PATENT OFFICE.

FRANCIS H. RICHARDS, OF SPRINGFIELD, MASS, ASSIGNOR OF ONE-HALF TO THE PRATT & WHITNEY COMPANY, OF HARTFORD, CONN.

MECHANICAL MOVEMENT.

SPECIFICATION forming part 01 Letters Patent No, 353,760, dated December 7, 1836.

Application filed February 23, 1686. Serial No. 192,967.

To all whom it may concern.-

Be it known that I, FRANCIS H. RICHARDS,a citizen of the United States, residing at Springfield, in the county of Hampden, State of Massachusetts, have invented certain new and useful Improvements in Mechanical Movemerits, of which the following is aspecification.

This invention relates to that class of mechanical movements in which a series of simito lar operative parts are successively operated by the same means and in the same way as said parts successively arrive at certain stations in their circuit, the object being to so operate a series of oscillating parts which have an intermittent forward movement in a circular circuit.

To this end the invention consistsin the improvements and combinations hereinafter set forth.

-In the drawings accompanying and forming a part of this specification, Figure 1 is a plan view of a mechanical movement embodying my improvements. Fig. 2 is afront elevation of the same. Fig. 3 is a side elevation, in which 2 5 some parts are broken away. Fig. 41s a view similar to the upper portion of Fig. 2, showing certain parts in different positions. Figs. b, 6, 7, and 8 are views similar to the preceding figures, respectively, showing a modification of the apparatus having an additional improvement.

Similar characters designate like parts in all thefigures.

Referring to the first four figures of drawings, the several operative parts are shown supported by a frame-work, which consists in a plain base-plate, 2, and two sides or uprights, 3 and 4. Bearings are formed on said sides for the driving-shaft S, and for a turret-shaft,

0 R, which carries the intermittently-revolving turret T and the oscillating cam G. This cam has imparted thereto a rotary reciprocating or oscillating movement by means of an eccentric, 10, on shaft S, the rod 11 being connected toa stud, 12, fixed in said cam. As shown in the drawings, said movement extends through about ninety degrees; but it may, however, vary in extent; and, furthermore, a suitable cam may be substituted for said eccentric.

(No model.)

The proper forward movement of the turret, which may be in the direction indicated by the arrow in Fig. 3, is produced in a similar manner. A suitable cam, 15, imparts an upward movement to rod 16,which rod, through arm 17, operates pawl 18 to turn the ratchetwheel 19, which is rigidly fixed to the turret. On completing its upward stroke, the rod, arm, and pawl are returned, as this is permitted by said cam, to their first position, either by weight ofrod 16, or by a spring, (not shown,) or by using a return cam, as may be preferred.

Th t t carries a series ofleversin this 7 i t f in number, designated by 5, 6,

i any desired size and form, pivoted at 9 to the respective turret-arms21,22, 23, and 24. Said levers each have an arm, 20, which works in the cam groove 25 of the cam O, which cam is supposed to be the same or similar to the cam 0" shown and described in my application Serial No. 129,850. The nature of said groove is well shown inthe drawings,and will be readily understood fromacomparison of Figs. 1, 2, and 4. It is so shaped as to hold levers 5, 7, and 8 closed and lever 6 open when the turret and cam stand as shown in these figures. In operating the mechanism this position of the several levers is maintained during the forward movement of the turret, since this and cam 0 move forward together; next,the cam returns, (the turret stand; ing still, or nearly S0,) which will simultaneously close lever 6 and open lever 5, and so on in succession with all the levers comprising the series. Thus each lever is carried to each station successively, and each lever sncces- 8 5 sively is moved by the same cam one way at one station and oppositely at a succeeding station, which, it should be noted, is not necessarily the next succeeding one.

The modified mechanism shown in the last four figures of drawings comprises the same parts as are above described, with the exception that the form of cam O is here made cylindrical, and that the connections between said cam and the levers are here indirect in- 5 stead of direct. In Figv 8, also, the turret and cam are shown at the beginning of a forward movement, the lever 5 being swung out ready to be carried around in that position to the station of lever 6 in-the other figures. The

. inner side of each turret-arm is formed to receive a slide, 30, which has a pin, 31, working in groove 25, and rack-teeth 32, meshing with By means Having thus described my invention, I claim a 1. The combination, in a mechanical move- 'ment, of the intermittently-revolving turret,

the rotary reciprocating cam, grooved substantially as described, a series of arms carried by said turret and operativcly connected with the said cam, and mechanism, substantially as described, operating the turret and cam to carry thelevers to-each station successively I 30 and operate them successively at the same station, substantially as set forth. 7,

2. The combination, in a mechanical movement, of the intermittently-revolvingturret, the cylindrical rotary reciprocating -cam, grooved substantially as described, a series of pivoted levers carried in said turret,and acor responding series of slides, 30, also carried in f the turret, said slides being operatively connected to said levers and said cam, substantially as set forth. i

FRANCIS H. RICHARDS.

Witnesses:

GEO. W. DRAKE, I

ROBERT L. PEOK. 

